One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant euphorbia in Santa Monica should be figured out by reviewing the USDA zone info.

Planting Calendar for Euphorbia

Frost tolerance for euphorbia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Euphorbia do ok in mild cold which tells us that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant euphorbia in Santa Monica is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant euphorbia and expect a good harvest is probably September. Any later than that and your euphorbia may not have a chance to grow to maturity. Starting your euphorbia indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on January 31 in Santa Monica. In the coldest months of winter you can expect an average low temperature of 35°F.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Santa Monica and it can change quite a bit from year to year. Half of the time in Santa Monica last frost occurs after January 31 so make sure that you are ready to protect your euphorbia in the event of a late frost.

USDA Zone Info for Santa Monica

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Santa Monica

You may be interested in your other planting guides for Santa Monica.